Decommissioning Insight 2015

Figure 8: Historical Variation in Well Plugging and Abandonment Cost Forecasts in the Central and Northern North Sea/West of Shetland

1

10 15 20 25 30 35 40 45 50

2

Average Forecast Cost Platform Well Average Forecast Cost Suspended Subsea E&A Well Average Forecast Cost Subsea Development Well

3

Range in Cost Forecasts

4

5

0 5

Estimated Cost per Well (£ Million - 2015 Money)

*

*

2011 2012 2013 2014 2015

2011 2012 2013 2014 2015

2011 2012 2013 2014 2015

Platform

Subsea E&A

Subsea Development

6

* Data cannot be split out for subsea E&A and development wells for 2011

Source: Oil & Gas UK

7

Well P&A

2014 Average £4.8million £17.4million £11.6million

2015 Average £4.1million £7.8million £9.9million

Platform wells

Subsea E&A wells

Subsea development wells

8

9

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